Re: [PATCH v5 6/8] iommu/amd: Do not re-enable dev table entries in kdump

From: Joerg Roedel
Date: Tue Sep 20 2016 - 08:42:48 EST

On Thu, Sep 15, 2016 at 11:03:24PM +0800, Baoquan He wrote:
> This enabling should have been done in normal kernel. It's unnecessary
> to enable it again in kdump kernel.
> And clean up the function comments of init_device_table_dma.

Well, no. We don't want to make any assumptions on what the previous
kernel did and what it did not. The init_device_table_dma() code should
run anyway.